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RELATED FAQS
Question
Answer
If using the alarm kit-ALK with the 99 device what power supply is needed?
Resolution:
Exit alarm ALK operates with 9VDC battery and doesn't required a power supply.If you choose to hard wire the exit alarm ALK use the PS902 power supply.Exit alarm ALK requires 24VDC regulated power ...:
TRANSFORMER
Resolution:
Electrical device to reduce voltage from 120V AC to 24V AC:
Maglock Making a "Buzzing" Noise
Resolution:
:
Why is the Von Duprin PS873 power supply buzzing or chattering?
Resolution:
Some transformers in the power supplies provide a little humming noise and that is normal. If the humming in Von Duprin PS873 power supply is loud follow these steps. Remove the load from the outp...: